This spring Michelin is coming out with a replacement for the Ps2 called the Pilot Sport. Unfortunately 19s wont be available in a 40 sidewall.
Would 245 35 19 front and 255 35 19 rear upset the VDC. They would be 25.8 inches front and 26 rear. I know the speedo would read a couple of mph fast
They would be mounted on G37 coupe wheels 8.5 inch front and 9 rear on an 07 G35 sedan. Other option is for 255 all around, but might be a rub issue up front? Anybody thoughts? http://www.porscheblogs.co.uk/tested...t-super-sport/

 

G37 19's are not that good of a track wheel. They're kinda on the heavy side. I'd personally get 18" RE30's or TE37's if I were you. As far as tire diameter goes, I think the limit is 3% difference or less? I can't remember. Anyhow, I currently have Hankook V12 Evo's but always wanted to try the PS2's. LMK what you think about these new tires.